查询词典 enantiomer

AIM: To compare the separation ability of different neutral cyclodextrins and their derivatives on ofloxacin enantiomer by capillary electrophoresis and to explore the possible mechanisms of chiral separation.

目的：比较在毛细管电泳中不同中性环糊精及其衍生物对氧氟沙星对映体的手性拆分能力，并提出可能的手性识别机制。

The results show that the enantiomer excess of the chiral alcohols was up to 99% and the yield is more than 90%.

在于整体微生物催化方面，国内外研究得最多的是酵母和一些真菌类的生物等。

So to synthesis the key chiral building blocks for these single enantiomer chemical products has become one of the most important and hot fields in organic synthesis.

因而合成这些手性产品的关键手性砌块也成了当前合成界研究的热点。

The separation by high performance liquid chromatography on chiral stationary phases has been recognized as a major one among all kinds of enantiomer isolation approachs.

在各种拆分方法中，以手性固定相为基础的高效液相色谱法是目前的主要拆分方法之一。

Compounds 1 and 2 are a pair of enantiomer, representing the first three-dimensional chiral polyoxometalates in the world.

主要研究结果如下：1。

The influences of the composition of mobile phase, the flow rate, the temperature and the injected quantity on the enantiomer rententivity and selectivity were examined and discussed.

考察了流动相组成、流速、进样量和温度等因素对对映体分离的影响。

Chiral ligand-exchange chromatography is one of the basic chromatography method for enantiomer separation, in which chiral ligands and metal ions are two essential elements to determine the chiral selectivity.

手性配体交换色谱法是分离手性化合物的基本方法之一，其中手性配体和金属离子是决定手性化合物分离选择性的根本因素。

In Chapter 1, the ubiquity of chiral phenomena and its important role in various disciplines, the methods for enantiomer separation, the principles of direct chromatographic separation of enantiomers and the status of chiral CGC are discussed and/or reviewed.

第一章论述或评述了手性特征的普遍性和在众多学科中的重要性、手性分离方法、色谱直接分离手性化合物对映体的基本理论、手性气相色谱研究现状。

Even if the side effects are not drastic , the inactive enantiomer has to be metabolized and represents an unnecessary burden for the organism.

即使副作用不明显，引入无活性的对映体同样会造成机体代谢的负担。

Methods: The cyclodextrin, concentration, pH, organic solvent were studied, and the results indicated that the enantiomer of ephedrin and ephedrine levorotatory were baseline separated under the following experimental conditions: uncoated fused silica capillary (75 μm× 68 cm), 25 mmol/L Tris, 2% HP-β-CD and 1% SBE-β-CD, pH was adjusted at 3.0 by phosphoric acid, and 15 kV separation voltage.

以SBE-β-CD和HP-β-CD二元环糊精为手性添加剂，探讨了环糊精种类及浓度、pH、有机溶剂种类等因素对麻黄碱及伪麻黄碱对映体拆分的影响，结果表明：毛细管：未涂渍熔融石英毛细管75μm×68 cm（有效长度60 cm）。分离用缓冲液为25 mmol/L的Tris缓冲液，含2.0% HP-β-CD和1.0% SBE-β-CD，用磷酸调节pH至3.0。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。